Schoolchildren bullied over their sexuality are being advised by teachers to act "less gay," it emerged today.

The shocking claim has been made by pupils in a report on bullying in schools in Essex.

Teenagers who are picked on for their appearance told how they were advised to wear their hair differently if they wanted to avoid being teased.

The document also reveals teachers are insensitive to the needs of bullied youngsters and claims some educators had received "very little" training in dealing with the challenges they face.

The "Anti-Bullying Work" report, based on evidence gathered from more than 250 teachers and pupils, has been compiled by Essex County Council.

The author of the report, Julie Keating, stated there was "anecdotal evidence of students being told to act less gay or to wear their hair differently as teachers felt they were making themselves a target for bullies".

The report says: "Teachers received very little training at college around bullying and most would welcome additional support and guidance. The school where the "act less gay" comments were made is not named, but the council has called on teachers to think hard about their advice.

According to the Equalities and Human Rights Commission, two thirds of lesbian, gay and transgender students had suffered bullying, and 17 per cent had received death threats.

The claims made in the report have angered anti-bullying and gay rights campaigners.

Jordan Newell, a gay rights campaigner, said: "I am incredibly shocked by this report. It is incredibly stark and paints a picture that teachers are holding up their hands and not trying to defend pupils who are expressing their differences."

The National Union of Teachers labelled the comments made to pupils as "inappropriate".

An Essex County Council spokeswoman said: "The council takes bullying very seriously and would hope all teachers are sensible in giving the right advice to pupils."

It said the report will go towards an anti-bullying information pack, which will be given to trainees.